<template>
<div class="layout">
    <el-container>
    <el-aside width="200px">
        <!-- logo 点击logo跳转到首页 -->
        <div class="logo" @click="$router.push('/layout/index')"></div>
        <!-- 导航 default-active设置菜单激活状态的效果-->
         <el-menu
         :router="true"
      :default-active="$route.path"
      class="el-menu-vertical-demo"
      background-color="#545c64"
      text-color="#fff"
      active-text-color="#ffd04b">
      <el-submenu index="1">
        <template slot="title">
          <i class="el-icon-location"></i>
          <span>用户管理</span>
        </template>
      </el-submenu>

      <el-submenu index="2">
        <template slot="title">
          <i class="el-icon-location"></i>
          <span>文章管理</span>
        </template>
        <el-menu-item index="/layout/articleList">
            <template slot="title">
                <i class="el-icon-location"></i>
                <span>文章列表</span>
            </template>
        </el-menu-item>
        <el-menu-item index="/layout/articleAdd">
            <template slot="title">
                <i class="el-icon-location"></i>
                <span>文章发布</span>
            </template>
        </el-menu-item>
      </el-submenu>

      <el-submenu index="3">
        <template slot="title">
          <i class="el-icon-location"></i>
          <span>栏目管理</span>
        </template>
      </el-submenu>
    </el-menu>
    </el-aside>
    <el-container>
        <el-header>
            <span class="el-icon-s-fold toggle-btn"></span>
            <span class="system-title">黑马头条后台管理系统</span>
            <div class="welcome">
                <span>欢迎你：71期的小伙伴</span> &nbsp;&nbsp;
                <span @click="signOutFn"> 退出</span>
            </div>
        </el-header>
        <el-main>
            <!-- 二级路由挂载点 -->
            <router-view></router-view>
        </el-main>
    </el-container>
    </el-container>
</div>

</template>

<script>
export default {
    methods: {
        // 退出
        signOutFn(){
            localStorage.removeItem("token-71");
            localStorage.removeItem("userId-71");
            this.$router.push("/login");
        }
    }
}
</script>

<style lang="less" scoped>
.layout {
  height: 100%;
  .el-menu-admin:not(.el-menu--collapse) {
    width: 200px;
    min-height: 400px;
  }
  .el-container {
    height: 100%;
  }
  .el-aside {
    background-color: #545c64;
  }
  .el-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #545c64;
  }
  .logo {
    height:60px;
    background: url(../assets/logo.png);
    background-size: cover;
    background-color: #fff;
  }
  .toggle-btn {
    padding: 0 15px;
    margin-left: -20px;
    font-size: 36px;
    color: white;
    cursor: pointer;
    line-height: 60px;
    &:hover {
      background-color: #4292CF;
    }
  }
  .system-title {
    font-size: 28px;
    color: white;
  }
  .welcome{
    color: white;
  }
}
</style>